In a parallel circuit containing two resistors R1 and R2, the total current IT supplied to the parallel network is held constant by an external source. If the resistance of R2 is increased significantly, what happens to the current I1 flowing through R1?

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Mathematics · Electric Circuits

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

I1 increases because a larger proportion of the constant total current is diverted away from R2

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Answer 1

I1 drops to zero because the circuit behaves like an open branch

Answer 2

I1 remains unchanged because branch currents in parallel circuits are always independent

Answer 3

I1 increases because a larger proportion of the constant total current is diverted away from R2

Answer 4

I1 decreases because the equivalent resistance of the network has increased

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